Agreed, have a ****. Also, just force yourself to get up early. Earlier than you need to, even. If sleeping through an alarm is a problem, get a really loud one (or several) and put them in various places around your room, not next to your bed where you can reach it and turn it off still half asleep then dose off again, places that you'll need to get out of bed to turn it off then just have the willpower not to go back. In short, just try to make sure you're really tired before you try to go to bed. There's no point trying to force yourself to sleep when you're not tired just because you need to be up early the next day.